Enhanced electron-transfer properties of cofacial porphyrin dimers through pi-pi interactions.

@article{Takai2009EnhancedEP,
  title={Enhanced electron-transfer properties of cofacial porphyrin dimers through pi-pi interactions.},
  author={Atsuro Takai and Claude P Gros and J. M. Barbe and Roger Guilard and Shunichi Fukuzumi},
  journal={Chemistry},
  year={2009},
  volume={15 13},
  pages={3110-22}
}
pi-pi assisted: Photoinduced electron transfer from cofacial porphyrin dimers to electron acceptors is prominently accelerated, whereas the back electron transfer is decelerated, relative to the corresponding porphyrin monomer (see figure).The radical cation of zinc tetrapentylporphyrin is dimerized with an excess of the neutral counterpart to form the dimer radical cation in which the unpaired electron is delocalized over both porphyrin rings. The dimeric radical cation exhibits an NIR… CONTINUE READING